I feel that you should let someone know the medications. I know that my difficult children Special Education teacher helped a lot when we where figuring out what worked best. She was great and very informative. My difficult child is currently on the highest dose of Ritalin LA the doctor will allow. This is a little scary to me, but it works with little side effects. I do want to say that his mainstream teachers have asked me if his dose needs to be increased, but after I explain the situation then they understand.
I have a neighbor that asked me about my difficult children medications one day after the school called her and suggested her son be placed on them. She was upset and concerned. I told my neighbor to take her son to a P-DR and have him checked out. Her son was tested and he didn't have ADHD as the school had thought. She took the information to the school and they haven't said anything else to her about it. Basically her son was not getting enough sleep and was acting out at school. (if only that was true for the rest of us)
But honestly I think that teachers deal with children day in and day out. They have a good grasp on childrens behavior and can be very helpful when informed of medications and diagnoses. Unfortunately I have had a few negative reactions from Mainstream teachers, but I just have to remember they are human and may have had a bad experience in the past. I try to inform them as best as possible and hope they have a good heart and won't be judgmental.